Selective calendar



Jan. 31, H E. HOULE SELECTIVE CALENDAR Filed Feb. 26, 1931 Patented Jan. 3l, 1931?` UNITED STATES JOSEPH H. `Emfns'r HoULE, onw'oncns'rnn, 4MnssncHUsr/r'rs i' This invention relatesftof a` calendar particularly designed for use by'iiremen orlother persons employed on" a fixed Working cycle. Verymany firemen Work underthe. 'so-called l 'z5 double platoon `system',hunderV which they lbut this is rather laborious when Working on v the involved double platoon or'other similar '`5system-' It is the objectof my inve'ntion to provide a calendar which may bel manipulatedto' ser,

lectively indicate the futuredates on which specific duties are to beperformed. Qr, con versely, the calendar maybe used to indicate the duties to be performed on a selected future ,My; invention'further relates to arrangebe hereinafter described and more particularly pointed out in the'appended claim',` l y.

' A preferred form ofmy inventiomtogether in the drawing,in which Fig. 1 is a front jelevation offmy. improved calendar; p l

Fig. 2 is a detail sectional'vievvg-taken along theline2-2inFig.1;" 'y Fig. 3 is a front view of a modified monthly disc, and Y Fig. 4 is a fragmentary View of a further modification.

Referring to Figs. 1 and 2, my improved calendar comprises a card 10 and a disc 11, pivotally secured together in a convenient manner as by an eyelet 12. The disc 11 is `With certain modifications thereof, yare shown preferably held lightly by frictionbetween the face of the card 10 and the under surface 50 number to the number of days in the Working i ing to a system to bedescribed,

ments-and combinations o f parts Whichfwill 4 M Y -n iFig. 1, thenumeral lappears 1n ,the outer *7.5

segmental Space .and n each Successi@ Sea.

cycle forWhichthe-calendar is to befuse'd.V

4The Vcalendari;shown inthe drav'ving isjarranged for the usual double platoon cycle of siXfdays," as previously described, `andronj sequently there are segments A115 arranged@5 aroundthe axis of the disc 11 and of equal angular extent. y y i C 'The disc 11 is similarly divided intojf'the same number of segmental spaces 17, `which spaces are designed to receive abbreviations o for thenames `of the months, arrangedaccord- Each of the ksegments 15 of the card"4 contains. consecutive `numerals from on e to thirty-one, arranged in'a numberbfconcen- `65 ltric `segmental spaces equal 'to the number of 1 days inthe Working: cycle. In the usual 4double platoon cycle, the ynumerals are thus arranged 1n sixconcentric segmental spaces, Vas shown inFig. 1. The numeralsfalcdlso 70 arranged consecutively in radial columns,`but

the series starting 'from a diferent'segr mental space in each dilferentsegmentj 15 Forinstance, in the segment 15V at the right ,Q

ment taken in' an anti-clockwise direction ,the numeral 1,7`appears one Space nearer' the center. The order in-Which the segmentsare arrangedmay be varied, 4itvbeing'merely nec- "80 QSSLI'y-that` the numeral f1 shal'lappear each lone of .the segmentalspaces'in someone ofthesegments. -f y ff.111th@draiyingfglires of different face vhave' been utilized to indicate ,different kinds 35 of dut VFor instance, the outerlcirclejcifl A light ac ed lfiguresy indicatesdays 4oli". The

lgures indicateV tvventyffou'r hour duty4 and 90 the twocirclesfof White figures .on a 'black background indicate night-duty. i

he names of the month are-applied tothe segment 17 onthe disc'll in reference to the differenti arrangements of numeralsfinthe "95 Vseg-ments -land alsoin refe-rence tov the num;- fber ofdays in the preceding nionth.;v

-iFo'r instance, assuming that the segment ,15a indicates the correct calendar "for a' given man for -Jaiyhaving thirty-One days', it will "10 *20' 4 'L' ffday oilfand he wishesto know whathe breviation for July. August also having thir? ty-onedays, the first day of September will y evidently be inthe twenty-fourhour circle .and consequently Will be found in the segment 15. As there are onl thirty days in September, the first day of ctober will also be inthe twenty-four hour circle and'October will accordinglybey indicated in the samesegmental space as September. The, other months are similarly distributed'asv Sh'wrinFig- 1- Y and-naines ofthe months Withthe numeral 'arranged as described,,the calendar is `used 'as follows :fik Certain vfireman or otherY person knows that on February 6,he was having a will be doingl on November 17th. He. sets the disc, 11 so that the segment marked IF eb.

corresponds with' the segment 115a Ain which 'the figure 6 appears in the outer or Days Oii:``fcircle. 'He then finds that theV abbreviation Vfor November is Vopposite ,theY segment 15d,- from vwhich' he discovers 'that on Novemxber 17y he will be doing day-time duty', as the Efrom thefoutsid'e;

' on. August io he 'win be doingnight duty,

ligure 17 appears on the third circleinward By a similar procedure, he can discover that and that on October 13 he will be on twentychange is'made in the cycle, the device'c'a'n be *can be reset for' use bv Vaslight"re-a'rrangement of the monthly-disc is necessary, as indicated in Fig.v 3,"otherwise four hour'duty, whileqon April 19 he will .have

a day oli'.

' wheiijthe` 'disc i1. istat@ Stlcorrecuy withV respect to the card 10, the duties on any future date,` can'be determined vat a glance, `'solang asfthe fireman'follows the regularworking cycle without change or interruption. vv If any readilyre-set for, the vnew conditions, or it any other party havingfadilfeient dayoil". u. i

When the calendar'is to be used on Leap Yea'r, in 'which February has an eXtraday,

the calendar is unchanged so vlong as the vnumber of days in the working cycle Vremains Y the same.

AIf a cycle lo i' five days is used instead of six', the card and disc would be divided into the advantages thereof, I do not wish vto be n' limited to the details herein disclosed, otherwise than as set forth in the claim, but what I claim is l v Y Y A selective calendar for use in determining future dates under a fixed yworking cycle of y six days havingfour different kinds of twentyfour vhour periods each withidistinguishing working characteristics, said calen-V darl comprising. a card and a dial pivoted L thereon, thefacesof said card. and dial being each divided-into a number of circular seg- '.-m'ents-o't equal angular extent and equal in .numberto vtheunumber of days in said Working'cycle/and'- said parts constituting month and numeral members, the segments on the monthmember each bearingthename Vof one or more yselectedinonthsand the seg-V ments on the numeral membery each bearing consecutive numerals from one to Ythirty-,one

sov

inclusive, said numerals 'being arranged ina v plurality of concentric annular spaces on each segment of said .numeralV member' andthe number of said concentric annular spaces on each segment being equal iii-number 'to the number of days in the Working cycle and to the number of segments in each of said inemf bers, said numerals being also arranged consecutively in substantially radial columns in ysaid Segments, with each diilerentvcon'centric space containing numerals yindicatingdays u y having the same workifng'characteristics,A vthe numeral one in eachv numerical series'being positionedin `anannular ,spaceV on its segmentk ,which is at adistance from the'dial axis` diffferentfrom the space containing the-numeral one in any other segment, and the name of each month being displayed in a segment on the month member which for any relative angularfsetting` 'of said members contains the `"numeral ionev in that annular space which is neXt in consecutiveorder to the annular space occupied lby the"numeral' indicating`the last dayA ofV the preceding month, for all 'years except leap year. y A Y In testimony whereof VI have hereunto afvfixed my signature. Y

JOSEPH 'ERNEST lITG-ULB Vfive segments, and the numerals would be arf ,ranged in five concentric circles .instead of six, with the proper revision in theA location of themonths on the disc 11. e v

While Iy have shown-the 'names of the months Von ,the disc Aand the numeralsl on Vthe card, it willbe obvious that the arrangement can be readilyreversed, as indicated-lin F ig.

4, with the numerals on the disc andthe names on the card.`

, Havingthug described'my iaxemion @mi iio 

